A METHOD, APPARATUS AND COMPUTER PROGRAM FOR MODIFYING AN ENDPOINT REFERENCE REPRESENTING A WEB SERVICE ENDPOINT

摘要

WS-Addressing EndpointReferences represent Web service endpoints and are propagated in the SOAP Envelope as part of Web service interactions. There is disclosed a method, apparatus and computer program for resolving (or modifying) aspects of the EndpointReference at the time of its propagation based on the EndpointReference recipient. Different recipients will potentially receive differing EndpointReferences. Aspects of the EndpointReference are re-resolved as the SOAP XML representing the EndpointReference is generated for the EndpointReference's propagation. For example, the location of the recipient might make a difference to the address propagated - if the recipient is outside a firewall, it may be appropriate to provide the recipient with the address of the firewall itself and to allow the firewall to re-route any request from the data to the web service endpoint. Alternatively, metadata contained within the EndpointReference might vary depending on the recipient - policy metadata contained within the EndpointReference might specify more stringent security requirements depending on the recipient.